Automatic valve control



Feb. 21, 1928.

T. WHITE AUTOMATIC VALVE CONTROL Original Filed June 5. 1924 2Sheets-Sheet l Feb. 21, 1928.

T. WHITE AUTOMATIC VALVE CONTROL Original Filed June 5. 192% 2,Sheets-sheet 2 Patented Feb. 21 1928.

vUNITED STATES PATENT oral-cs.

TILMAN WHITE, 01? JERSEY CITY; NEW JERSEY, ASSIGNOR TO PERMEXCORPORATION OF AMERICA, A CORPORATION 013 NEW JERSEY.

AUTOMATIC" VALVE conrnon Application filed June 5, 1924, Serial Myinvention relates to improvements in automatic valve control mechanism,and more particularly has reference to and is illustrated in theaccompanying drawings in its application to means in combination with avalve such as a gas valve for automat-ically operating the sameandcutting off the supply of gas upon the happening of a predeterminedevent such as an unduerise of temperature.

In said drawings, I have illustrated 1n Fig. 1 in side elevation asuitable form of valve and automatic control mechanism therefor,embodying an application of my invention. Fig. 2 is a perspective detailof one of the operating-parts. Fig. 3 is a similar view of anotheroperating part; Fig. l is a front elevation of the device, the positionof certain parts, after the valve has been operated, being shown indot-ted outline, and

Fig. 5 is a detail partly in section illustrating the construction ofthe valve closure.

6 indicates a suitable form of boxor outer casing having a suitable hookor ring at the 2 top such as 7 from which may be suspended a link orchain such as 8. 9 indicates a similar link suitably secured to thelinlr 8 by suitable means such as solder or fusible material adapted tomelt or fuse and allow 36 the links to separate where joined, asindicated at 10. The lower link preferably passes through a hook or holesuch as 11 secured to or formed witha weighted member such as 12 whichin turn is mounted upon the shaft 13 and is free to rotate thereupon,said shaft .at the right,- looking at Fig. 1, being rectangular incross-section upon which is mounted the weighted memher or counterweight14 of less weight than to the weighted member-12 and which is retainedthereon by any suitable means such as the cotter pin 15. 16 indicates anoffset or lug projecting laterally from the counterweight 14 in the pathof movement of the shank or stem 17 of the weighted member 12, so thatwhen the weighted member 12 is released by the fusing and separating ofthe links'8, 9, the same in dropping brings the stem 17 across'the, pathof the lug 16,

i so thereby throwing the'counterweight 14 upwardly and leftwardlylooking at Fig. 4 past its dead centre positionuntil it drops in theposition indicated in dotted outline by reference character 14. Thiscounterweight having a rectangular hole for pas- No. 718,165. Renewed Arn 2a, 1926.

the carrier or arm 18 shown to better ad- Y vantage in Fig. 3, andterminates at the left end in a reduced rounded portion which has itsbearing in the casing of the valve as indicated at 19. This arm 18 isdrilled and tapped at 51 to provideengagement for the bolt 20 which isscrewed upwardly therethrough looking at Fig. 4; and is provided with aflock-nut 21 to secure it in proper position in the arm 18., The lowerend of. the bolt 20 is provided with a suitable head. 22 and the bolthaving been first passed through the closure 23 of :the valve, retainsthe same as shown, the 'hole through the closure 23 and through whichthe bolt passes 1 being slightly larger than the diameter of said boltto allow fora little play. Said closure member 23 alsoibored larger, inw the direction of the lower orrounded side thereof, and is providedwith a threaded plug 24, as shown. 25 indicates a suitable washer whichmay be introduced between the head 22 of the bolt and threaded plug 24;to allow aseating for said'bolt, from all of which it will be seen thatas the arm-18 moves downwardly anti-clockwise when the weight 12 isreleased, it carries with it the closure 23 which also shiftsanti-clockwise until in the position shown in dotted outline asindicated at 23, thereby shutting off the gas, water, or other medium tobe controlled. looking at Fig. 4 through the inlet 26 and passes throughthe valve, escaping by the outlet 27. The passage 28 through the valveit willbe observed is slightly tapered so as Such medium entersleftwardly to provide a seating as indicated at 29 for f one end of arope or wire cable 36 is secured as indicated at 37, the same passlngaround in the groove of the sheave, the free end passing through theoutlet 38 as shown in; Fig. 4. As a further means of support for thecase or frame 33 of the sheave, a yoke or U-shaped strap such as 39 isprovided with a round hole as indicated at 40 forthe passage of theshaft 13, the inner ends-being secured by screws 41, 42 to the casing33.

The said sheave or grooved pulley is also" provided with a projection orfinger such as 43 which upon the rotation of the pulley moves in thepath ofthe cut-away portion of themember 46', shown to advantage in Fig.2. -:This member is so adjusted upon the rectangular portion of theshaft 13 that when the cable '36 is pulled and the projection 43encounters the face 44 or 45 of the member 46, it rotates the shaft 13the same i valve is adjusted for operating upon a horizontal ortransverse conduitor piping, but of course it will be readily understoodthat by shifting the mounting of parts, such as the arml8 and member 46,ninety degrees, the valve will operate upon a vertical line of pipe, andthe same of course applies to theweights 12 and 14. j

Of course it will be understood that various modifications may be madein the construction and arrangement of parts without departing from thespirit of the invention as claimed.

1. In a heat released device the combination with a movable valvemember, and seat therefor, of a weight member normally tending in oneposition to hold said valve away from its seat, and heat released meansfor moving said Weight member to another position to close sa1d-valve,sa1d weight. member in said second mentioned position acting to'holdsaid valve closed against its seat.

2.. In a heat released device of the class described, a weighted memberadapted to be moved past a dead center position for operating a valve,said weighted member adapted to complete the operation of said valveafter passing said dead center, and a movable weighted member forwardofandoperatively connected to the first mentionedin the same manner as ifoperated.

dependently of the latter, manually moving said valve. 7 r

weighted member to operate the valve until the first mentioned weightedmember be comes operative.

3. Ina heat released device of the class 7 described a weighted 'memberadapted to be moved past a dead center position for operating avalve,said weighted member ada ted to complete the operation of said Va veafter passing said dead center, and a movable weighted member forward ofand operatively connected to the first mentioned weighted member tooperate the valve until the first mentioned weighted member becomesoperative, the second of said weighted 1 members being of greater weightthan th first mentioned. i i is 4. Ina heat released device the combinaed member normally holding said valve tion with a movable valve memberand a seat therefor, of'means comprising a welghtaway fromits seat,-heat released means for actuating said holding means to cause-it toclose the valve, connect1ng means between said holding means and saidheat released means permitting movement of the valve in- 5. In a deviceof theclass described, an

automatically and manually operative valve 1 adapted to close in thedirection of the flow and means for a of fluid and having a devicecomprising a" weightadapted to be'moved automatically or manually past adead center position for automatically operating the valve.

6. In a heat released device of the class described the combination witha gas shutoff valve, of means normally holding said valve open' andadapted for actuation to close said valve and hold it closed, heatreleased means for automatically actuating said closing means upon theoccurrence of a I predetermined temperature, and means operable at adistance for actuating said closing means to cause a closure of saidvalve.

7. In a heat released device of the class described the combination witha gas shutofi' valve, of means normally holding said valve open andadapted for actuation to close said valve and hold it closed,heat'released means for automatically actuating said closing means uponthe occurrence of a pre determined temperature adjacent said valve,

and means operable at a distance for actuating said closing means tocause a closure of said valve. j r i 8. In aheatreleased device oftheclass described the, combinationlwith a gas shut off valve, of meansnormally holding said valveopen and adapted for 3.011113131011 110"close said valve and hold it closed, heat re-" leased means forautomatically actuating said closing means upon the occurrence of apredetermined temperature adjacent "said valve comprising a memberadapted to' store up kinetic energy and deliver said-energy arate heatreleased means normally out of operative engagement with said operatingmeans and movable upon occurrence of a predetermined temperature toengage said operating means and actuatethe same to cause a closure ofsaid valve.

10. The combination with a shut-off valve, of operating means therefornormally tending to hold the valve open comprising a shaft operativelyconnected to said valve and I a weight on said shaft, and means foractuating'said operating means to close the valve comprising areleasably restrained weight mounted on said shaft and adapted whenreleased to engage said first weight to move the latter to position toclose the valve and hold it closed.

11. The combination with a movable valve member and a seat therefor, ofmeans tending in one position to hold said valve away from its seat, andheat released means for moving said first mentioned means to position toclose the valve and hold it closed.

12. The combination with agas shut-off valve and a. seat therefor, meansnormally tending to hold said valve open, and a heat released weight formoving the valve to closed position to be held in the latter position bysaid first mentioned means.

13. In a valve operating mechanism of the class described, a. valvespindle, a weight normally supported at one side of the center of thespindle for holding the valve open, an-

other weight normally retained against gravity by a fusible link andadapted when said link is fused to throw said first men tioned weightover the center of said spindle,

whereby said valve is closed andthe first mentioned weight retains saidvalve in closed position.

14. In a valve operating mechanism of the class described,-a valvespindle, a Weight normally supported at one side of the center of thevalve spindle for holding the valve open, another weight normallyretained against gravity by a fusible link and adapted when said link isfused to throw said first mentioned weight over the center of thespindle, whereby said valve is closed and the first mentioned wieghtretains said valve in closed position, and a lever connected to saidspindle adapted to be operated by the falling of said second mentionedweigh 15. In a valve operating mechanism of the class described, a valvespindle, a weight normally supported at one side of the center of thevalve spindle for holding the valve open, another weight normallyretained against gravity by a fusible link and adapted when said linkfuses to throw said first mentioned weight over the center of thespindle, whereby said valve is closed and the first mentioned weightretains said valve in closed position, and a lever connected to saidspindle adapted to be operated by the falling of said second mentionedWeight, and in combination, a second lever, and 'manual means foroperating the same, for operat ing said valve independently of thesecond mentioned weight. r

I In testimony whereof I hereunto aflix my signature.

TILMAN WHITE.

